Administrator Guide
Version Description
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100–ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
9.8(0.0P2) Introduced on the S3048-ON.
9.7(0.0) Added support for VRF. Introduced on the S6000-ON.
9.2(1.0) Introduced on the Z9500.
9.0.2.0 Introduced on the S6000.
8.3.19.0 Introduced on the S4820T.
8.3.7.0 Introduced on the S4810.
7.8.1.0 Introduced on the C-Series.
7.6.1.0 Introduced on the E-Series.
Usage Information This feature allows you to limit the number of multicast entries on the system. This number is the total of all the
multicast entries on all line cards in the system. On each line card, the multicast module only installs the maximum
number of entries, depending on the congured CAM prole.
To store multicast routes, use the IN-L3-McastFib CAM partition. It is a separate hardware limit that exists per
port-pipe. This hardware space limitation can supersede any software-congured limit. The opposite is also true,
the CAM partition might not be exhausted at the time the system-wide route limit set by the ip multicast-
limit command is reached.
Related Commands
• show ip igmp groups — display the IGMP groups.
ip multicast-routing
Enable IP multicast forwarding.
Syntax
ip multicast-routing [vrf vrf-name]
To disable multicast forwarding, use the no ip multicast-routing [vrf vrf-name] command.
Defaults Disabled.
Parameters
vrf vrf-name (OPTIONAL) Enter the keyword vrf followed by the name of the VRF to enable IP
multicast forwarding on that VRF.
Command Modes CONFIGURATION
Multicast 1025